Filter Blocking Tendency
Why is it important to know the FBT?
Fuels which have a high FBT could potentially block filters in the distribution network or during use in a vehicle, power plant, or aircraft. Cold flow issues with diesel containing FAME (biodiesel) and FAME material has resulted in the development of the new EI industry test method standard to check quality of FAME and (blended) diesel fuels to avoid major fuel operability problems. Fuel cleanliness is also an important issue as modern fuel injectors and injection pumps are being manufactured to more precise tolerances. Particle contamination, degradation, or corrosion of pipelines and storage tanks can quickly clog filtration systems.